This app Carnatic is a simple carnatic music notation player. It plays harmonium sound for each swaram (note).

Firstly it has built-in notation for basic carnatic lessons. These are useful for carnatic music practice. Students can practice carnatic basic lessons in any and all the melakartha ragams! It plays 3 kalam speed for each lesson and will continuously advance to the next lesson.

Next it has an interface to type the notation for any song you want in any ragam and the app will play it. If you want to play the notation for any janya ragam then just set the ragam to its melakartha and type the swarams you should hear the janya ragam notes.

It can be used to workout kalpana swarams korvais etc.